/Engine/Source/Runtime/Landscape/Public/LandscapeEdit.h
void SetEditToolTextureData ( int32 X1, int32 Y1, int32 X2, int32 Y2, const uint8 * Data, int32 Stride, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< [UTexture2D](API\Runtime\Engine\Engine\UTexture2D) *&([ULandscapeComponent](API\Runtime\Landscape\ULandscapeComponent) *)> GetComponentTexture, TextureGroup InTextureGroup )